Sligo, Leitrim & Northern Counties 0-6-2 Locomotives in Ireland

Class Details by Steve Llanso of Sweat House Media

Class Pioneer (Locobase 10318)

Data from "The Sligo, Leitrim, and Northern Counties Ry," The Locomotive Magazine, Vol VIII (9 May 1903), pp. 335. Works numbers were 1197-1198.

This was the first pair of new locomotives for the S L & NC, which opened its first section in 1879. The wheel arrangement attracted some comment by the LM's author. A photo shows that the trailling axle was both a good distance behind the last coupled axle (to support the firebox) and held wheels that seemed almost the same diameter as the drivers. Also, the connecting rod was quite long because it drove on the 3 coupled axle, a rare layout.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID10318
RailroadSligo, Leitrim & Northern Counties
Number in Class2
Road Numbers
Number Built2
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 8.75 / 2.67
Engine Wheelbase (ft / m)15.67 / 4.78
Ratio of driving wheelbase to overall engine wheelbase 0.56
Overall Wheelbase (engine & tender) (ft / m)15.67 / 4.78
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)82,880 / 37,594
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)82,880 / 37,594
Tender Water Capacity (gals / ML)1440 / 5.45
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 1.80 / 2
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)46 / 1168
Boiler Pressure (psi / kPa)130 / 9
High Pressure Cylinders (dia x stroke) (in / mm)16" x 22" / 406x559
Tractive Effort (lbs / kg)13,529 / 6136.66
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)150 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)
Evaporative Heating Surface (sq ft / m2)
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)
Evaporative Heating Surface/Cylinder Volume
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation
Same as above plus superheater percentage
Same as above but substitute firebox area for grate area
Power L1
Power MT

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Wes Barris